Question

find $m\angle bfc$.
$m\angle bfc = \square^\circ$

Explanation:

Step1: Identify vertical angles

$\angle EFD = \angle AFB = 28^\circ$

Step2: Identify right angle

$\angle AFC = 90^\circ$

Step3: Calculate $\angle BFC$

$\angle BFC = \angle AFC - \angle AFB = 90^\circ - 28^\circ$

Answer:

$62^\circ$